Scroll compressor

a compressor and roller technology, applied in the direction of machines/engines, couplings, liquid fuel engines, etc., can solve the problems of increasing pressure loss and excessive pressure applied to the oldham ring, and achieve the effect of reducing frictional force and decreasing frictional for

Active Publication Date: 2008-01-08
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This solution effectively reduces frictional forces, prevents refrigerant leakage, and minimizes component wear by managing pressure and lubrication within the scroll compressor, enhancing operational efficiency and reliability.

Problems solved by technology

However, in case of the conventional low pressure scroll compressor to which the above configuration is applied, the tip seal may be melted by high temperature in the compressor chamber P, and the refrigerant gas may be leaked out of the compressor chamber P.
In addition, if a pressure in the compressor chamber P is excessively increased, the excessive pressure is applied to the Oldham ring seated between the orbiting scroll and the main frame.
That is to say, if an excessive pressure is applied to the Oldham ring, the excessive pressure causes excessive frictions between the lower end of the orbiting scroll and the upper end of the Oldham ring and between the lower end of the Oldham ring and the upper end of the main frame, thereby increasing the pressure loss caused by friction.

Method used

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Embodiment Construction

[0031]Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings. However, the spirit of the invention is not limited to the embodiments, but other embodiments may be easily proposed within the scope of the invention or other retrograde inventions by adding, changing or deleting other components.

[0032]FIG. 2 is an enlarged sectional view showing main components of a scroll compressor according to the present invention.

[0033]Referring to FIG. 2, the scroll compressor 100 of the present invention includes a main frame 300 for supporting an upper end of a driving shaft, an Oldham ring 200 seated on the upper portion of the main frame to linearly reciprocate, an orbiting scroll 400 seated on the upper portion of the Oldham ring to compress a coolant with orbiting, and a fixed scroll 500 fixed to the main frame 300 and forming a compressor chamber P therein together with the orbiting scroll.

[0034]In more detail, the main frame...

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PUM

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Abstract

A scroll compressor, which allows refrigerant in a compressor chamber to be partially discharged so that frictions generated in frictional surfaces between an orbiting scroll and an Oldham ring and between the Oldham ring and a main frame may be decreased. Also, an upper chamber may be formed on an upper surface thereof and a lower chamber may be formed on a lower surface thereof. An oil supply structure may be provided in a main frame such that lubrication is smoothly performed. Additionally, at least one key may be provided protruding from the lower surface of the Oldham ring. Further, the main frame may include at least one key groove configured to receive the at least one key of the Oldham ring. Additionally, the oil supply groove may be provided separately from and in communication with the at least one key groove.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a scroll compressor, and more particularly, to a scroll compressor in which high pressure generated by an orbiting movement of an orbiting scroll during a compressing operation is adjusted such that oil is smoothly distributed over parts of the compressor, thereby preventing breakage and abrasion of the parts.[0003]2. Description of the Related Art[0004]Generally, a scroll compressor is operated for compressing by means of relative movement of a fixed scroll and an orbiting scroll, and widely used in the fields of room air conditioners and automobile air conditioners owing to its advantageous characteristics such as high efficiency, low noise, small size and light weight.[0005]The scroll compressor is classified into a low pressure scroll compressor and a high pressure scroll compressor according to the filling gas, namely whether an inhaling gas is filled in the casing or a discharging ...

Claims

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Application Information

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Patent Type & AuthorityPatents(United States)
IPC IPC(8): F03C2/00F04C18/00F04C18/02F04C27/00F04C29/00
CPCF04C27/005F04C29/0021B05B1/34B05B7/0018E03D9/08
InventorKIM, CHEOL HWANSHIN, DONG KOOKOO, IN HWEKIEM, MYUNGKYUN K.
OwnerLG ELECTRONICS INC